Car underframe structure



Feb 25, 1936. w. o. ASHE CAR UNDERFRAME STRUCTURE Filed Dec. 15, 1933 2 Sheets-Sheet l Fezbo 25 393%. w E 2,032,195

CAR UNDERFRAME S TRUCTURE Filed Dec. 15, 1933 2 Sheets-Sheet 2 Wye/War MY/iam 0 #566 PATENT ()FFICE CAR UNDERFBAME STRUCTURE William 0. Ashe, St. Louis, MEL, assignor to General Steel Castings Corporation, Granite City, 11]., a ccrporation of Delaware Application December 15, 1933, Serial No. 702,447 4 Claims. (Cl. 105-415) This invention relates to railway rolling stock Staggered in order to facilitate loading of autoand consists particularly in a novel underframe mobiles into the car. construction for freight cars with side doors, The portion of each side sill between the door and more particularly automobile box cars. posts 8 and f rm n h bottom m m of h Such car underframes heretofore have been doorway framing is of Z-section, as shown in provided with side sills of suitable section uni- F gu e t W b portien thereof being form throughout their lengths and frequently of s aa ly d ep a the Web Portions II of channels with the flanges extending inwardly. the remainder of the sill which are of channel In order to support the car flooring, which usu- Section a in Figure The op flange H o the 10 ally extends into the doorway to meet the side h p d p r n of h i l x nd o tward y 1 door, a separate member is mounted outside the W e t e flanges 93 f t Channel Shaped p portion of the side sill immediately beneath the t S e d wa d y, a o a uSS t l4 be doorway, which member may be an angle bar provided adj ce t t 01001 posts e w e the or a short length of timber. Also a reinforcing laterally efieet p t o t e S l top flan angle is frequentlysecured to the adjacent por- The top flange 52 f t Z-s ap d p ti n of the 1 ti of th sill, side sill extends slightly inwardly of the web ID The main object of the present invention is and the top and hOttOm fl s i2 a d of to simplify and strengthen the construction of this portion are approximately equal in Widthbox car underframes and particularly the side sill Flanges 43 of the Channel Section Parts of the portions thereof adjacent the side door opensill are also of equal Width- 20 ings. This object is attained substantially by The 11001 boards are mounted upon the top forming each side sill of a continuous metal flanges of the underframe longitudinal and beam, the portion thereof beneath the doorway transverse members I, 3, 4, 5 and which being f z section with the top flange extend flanges are disposed in the same horizontal plane mg outwardly into the doorway this portion of for this purpose. The flooring between the door the S111 being deeper than the remaining posts 8 extends outwardly beyond the side walls tions thereof which may be conveniently of of h Car and the edge P i 1s flush with channel section with both flanges extending inthe Inner Surface of the shdmg door wardly. ported by means of suitable bearings upon the In the accompanying drawings which inuS track i8 disposed outwardly of the outer sur- 30 Hate the invention faces of the door posts.

The doorway extensions of the flooring are thus adequately supported by the side sill itself which is especially shaped for this purpose and additional members for supporting the floor extensions and for reinforcing the side sill are unnecessary. Obviously, the shaping of the portions of the side sill on each side of the doorway may be varied as desired and also the sill may be separately formed of one or more parts disposed lengthwise which may be secured together the underframe and fioormg adJ-acent door to form essentially a continuous side sill member in which the various parts are disposed to attain The figures illustrate a box car integral cast the maximum strength to f lfill the difier nt under frame including side Sills generally indifunctions thereof at difierent points with the cated at i, center sill 2, bolsters 3, end sills 5, and use f a minimum t of t l, Th transoms 5 and It will be understood that strength of the sill may be increased, as will be the general construction of the underframe as readily understood, by widening of the flanges shcwn is not essential and the various structural and/Or deepening of the upright web. The use 5U members mentioned ay be Sepa ate y formed of all such modifications as come within the and assembled With'each other in a built-up scope of the appended claims is contemplated. derirame. Secured to the side sills l are the I laim; superstructure side walls 6 reinforced by struts 1. In a railway car underframe side sill in- 7 and e 01 p s h d o way p s tegral structure, a part with an inwardly extend- 55 9 on opposite sides of the car are preferably ing top flange, an adjacent part forming a door- 55 Figure 1 is a top view of a box car underframe illustrating the invention.

Figure 2 is a side view of the same assembled with other portions of the car body.

Figures 3 and 4 are vertical transverse sections taken on the corresponding section lines of Figure 1 and showing flooring applied to the underframe.

Figure 5 is a detailed top View of a portion of way bottom frame and with an outwardly extending top flange offset laterally from the top flange of said first-mentioned part, and a diagonal connection between said top flanges, said top flanges and said connection forming a continuous member of substantial width throughout for mounting flooring.

2. A railway car side sill member formed in part of channel-section, with both flanges extending solely inwardly, and in part of Z-section with all but a small portion of the top flange thereof extending outwardly for supporting car flooring extending laterally beyond said channelsection part, said top flange and the upper of said channel flanges being continuous with each other. 7 V

v 3. A railway car structurally complete side sill member formed of an upright web with top and bottom flanges, a part of said sill serving for mounting door posts and wall structure, said flanges thI'OlEhOllt said part extending solely in one direction from said web, at least the major portion of said top flange at another part of the sill extending in the opposite direction from said web and forming a doorway bottom member, said top flange having a smooth upper surface for supporting car flooring and being horizontally continuous and of substantial width throughout whereby said top flange assists substantially in resisting bending forces applied to the sill memher.

4. A railway car underframe side sill having a channel-section part and a Z-section part and having laterally projecting flanges of substantial width and extending continuously from end to end of the sill, said channeland Z-section parts forming a structurally complete side sill.

' WILLIAM O. ASHE. 

